Hi ,this link may be help you, is a solution of Fernando Guerrero he's a SQL SERVER guru
http://groups.google.com.co/groups?hl=es&lr=lang_es|lang_en&ie=UTF-8&oe=UTF-8&selm=ezvdgGcfBHA.1448%40tkmsftngp02&rnum=3
Jose Nadim
PD.. Sorry for my english ,i'm speak spanish